| May 3, 2025 | Markuszewski | ½–½ | Wecker | Round 9: Markuszewski, Maksymilian - Wecker, Martin | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| May 2, 2025 | Sarabando | 1–0 | Markuszewski | Round 8: Sarabando, Rodrigo Andias - Markuszewski, Maksymilian | Slav Defense: Modern Line | |
| May 1, 2025 | Markuszewski | 1–0 | Verga | Round 7: Markuszewski, Maksymilian - Verga, Francesco | Semi-Slav Defense: Chigorin Defense | |
| Apr 29, 2025 | Alaime | 1–0 | Markuszewski | Round 4: Alaime, Maxime - Markuszewski, Maksymilian | King's Indian Attack: Double Fianchetto | |
| Apr 28, 2025 | Markuszewski | 0–1 | Kanyamarala | Round 3: Markuszewski, Maksymilian - Kanyamarala, Tarun | Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line | |
| Apr 27, 2025 | Markuszewski | 0–1 | Sokolovsky | Round 1: Markuszewski, Maksymilian - Sokolovsky, Yahli | Semi-Slav Defense: Normal Variation | |
| Jun 15, 2024 | Winter | 1–0 | Markuszewski | Round 9: Winter, Sven - Markuszewski, Maksymilian | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Jun 15, 2024 | Markuszewski | 0–1 | Van Roon | Round 8: Markuszewski, Maksymilian - Van Roon, Sjoerd | Slav Defense | |
| Jun 15, 2024 | Van der Hagen | 1–0 | Markuszewski | Round 7: Van der Hagen, Loek - Markuszewski, Maksymilian | Sicilian Defense: Closed | |
| Jun 15, 2024 | Markuszewski | 1–0 | Chua | Round 6: Markuszewski, Maksymilian - Chua, Ethan | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Jun 15, 2024 | Beeke | ½–½ | Markuszewski | Round 5: Beeke, Bob - Markuszewski, Maksymilian | Semi-Slav Defense: Stoltz Variation | |
| Jun 15, 2024 | Markuszewski | 1–0 | John | Round 4: Markuszewski, Maksymilian - John, Ryan | Queen's Gambit Declined: Harrwitz Attack | |
| Jun 15, 2024 | Mastop | 0–1 | Markuszewski | Round 3: Mastop, Guido - Markuszewski, Maksymilian | Bird Opening: Dutch Variation | |
| Jun 15, 2024 | Markuszewski | 0–1 | Van den Doel | Round 2: Markuszewski, Maksymilian - Van den Doel, Erik | Semi-Slav Defense: Normal Variation | |
| Jun 15, 2024 | Andre Dam | 0–1 | Markuszewski | Round 1: Andre Dam - Markuszewski, Maksymilian | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Mar 15, 2024 | Markuszewski | 0–1 | Xu | Reykjavik Open 2024 | English Defense | |
| Nov 2, 2024 | Markuszewski | 1–0 | Westerlaan | Round 9: Markuszewski, Maksymilian - Westerlaan, Sander | Queen's Gambit Declined: Three Knights Variation | |
| Nov 1, 2024 | Van Dael | 1–0 | Markuszewski | Round 8: Van Dael, Siem - Markuszewski, Maksymilian | Sicilian Defense: Najdorf Variation, English Attack | |
| Oct 31, 2024 | Markuszewski | 1–0 | Darie | Round 7: Markuszewski, Maksymilian - Darie, Aden | Queen's Gambit Declined: Three Knights Variation | |
| Oct 28, 2024 | Aravindhan | ½–½ | Markuszewski | Round 3: Aravindhan, Achyuth - Markuszewski, Maksymilian | Sicilian Defense: Moscow Variation | |
| Oct 27, 2024 | Ambrona Navarro | 0–1 | Markuszewski | Round 2: Ambrona Navarro, Himar - Markuszewski, Maksymilian | Slav Defense: Exchange Variation | |
| Oct 26, 2024 | Markuszewski | 0–1 | Smeets | Round 1: Markuszewski, Maksymilian - Smeets, Kobe | Semi-Slav Defense: Normal Variation | |
| Oct 28, 2023 | Markuszewski | ½–½ | Schilstra | Amsterdam Chess Open 2023 - A & B | Benoni Defense: Classical Variation, Czerniak Defense | |
| Oct 28, 2023 | Pham | 1–0 | Markuszewski | Amsterdam Chess Open 2023 - A & B | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Jul 19, 2023 | Lasota | ½–½ | Markuszewski | Najdorf Memorial | Nimzo-Larsen Attack: Classical Variation | |
| Jul 18, 2023 | Markuszewski | ½–½ | Persson | Najdorf Memorial | Queen's Gambit Declined: Three Knights Variation | |
| Jul 17, 2023 | Podgorski | 1–0 | Markuszewski | Najdorf Memorial | Sicilian Defense: Closed | |
| Jul 16, 2023 | Markuszewski | 0–1 | Kowalczyk | Najdorf Memorial | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Jul 15, 2023 | Karpus | 1–0 | Markuszewski | Najdorf Memorial | Sicilian Defense: Closed | |
| Jul 14, 2023 | Markuszewski | ½–½ | Zalega | Najdorf Memorial | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Jul 14, 2023 | Markuszewski | 1–0 | Mueller | Najdorf Memorial | Queen's Gambit Declined: Barmen Variation | |
| Jul 12, 2023 | Czerwonski | 0–1 | Markuszewski | Najdorf Memorial | Semi-Slav Defense: Botvinnik Variation, Lilienthal Variation | |
| Jul 11, 2023 | Kaczmarek | 1–0 | Markuszewski | Najdorf Memorial | Sicilian Defense: Najdorf Variation | |
| Jul 25, 2022 | Markuszewski | ½–½ | Siekanska | Warsaw Open | A | Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch | |
| Jul 24, 2022 | Pires | 1–0 | Markuszewski | Warsaw Open | A | Sicilian Defense: Wing Gambit, Marshall Variation | |
| Jul 23, 2022 | Markuszewski | ½–½ | Rozycki | Warsaw Open | A | English Defense | |
| Jul 23, 2022 | Jaskolka | 1–0 | Markuszewski | Warsaw Open | A | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Jul 22, 2022 | Markuszewski | 1–0 | Atkinson | Warsaw Open | A | Queen's Indian Defense: Riumin Variation | |
| Jul 21, 2022 | Dubnevych | 1–0 | Markuszewski | Warsaw Open | A | Slav Defense: Modern Line | |
| Jul 19, 2022 | Markuszewski | ½–½ | Sowul | Warsaw Open | A | Benko Gambit Accepted: Dlugy Variation | |
| Jul 18, 2022 | Markuszewski | 0–1 | Mickiewicz | Warsaw Open | A | King's Indian Defense: Orthodox Variation, Positional Defense | |